Launchpad has imported 5 comments from the remote bug at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56651.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://documentation.ubuntu.com/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/#bugs-in-external-trackers. ------------------------------------------------------------------------ On 2013-03-18T09:48:25+00:00 Sergii Strelkovskyi wrote: Created attachment 29689 Source code with sine test Sources with test cases are attached. Current output: Compile-time value of sine is -2.44929359829470641e-16 Runtime value of sine is -2.44921270764475452e-16 Compile-time value of tangent is -1.63312393531953700e+16 Runtime value of tangent is -1.63317787283838440e+16 Reply at: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1156579/comments/0 ------------------------------------------------------------------------ On 2013-03-18T09:50:25+00:00 Sergii Strelkovskyi wrote: Created attachment 29690 Source code with tangent test Reply at: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1156579/comments/1 ------------------------------------------------------------------------ On 2013-03-18T10:57:38+00:00 stevenb wrote: For what target is this? Reply at: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1156579/comments/2 ------------------------------------------------------------------------ On 2013-03-18T11:06:55+00:00 Sergii Strelkovskyi wrote: (In reply to comment #2) > For what target is this? x86, host also is x86. Reply at: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1156579/comments/3 ------------------------------------------------------------------------ On 2013-03-18T11:29:12+00:00 Rguenth wrote: This is not a bug in GCC. GCC evaluates to 0.5ulp precision at compile-time using MPFR (for a cross-compiler it would have no way to invoke the actual targets math library routine for example). Thus the "bug" is in your math library which does not evaluate to the same precision. OTOH this is not a bug at all, but a "feature". We cannot fix it. Reply at: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1156579/comments/4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1156579 Title: sin() and tan() have different values during compile time and run time. To manage notifications about this bug go to: https://bugs.launchpad.net/eglibc/+bug/1156579/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
